Figure 3. Changes in antioxidant capability and virulence of five single-gene disruption mutants of B. bassiana.
(A) Effective concentrations (EC50s) estimated for H2O2 and menadione to suppress 50% colony growth by modeling analysis of relative growth trends over the concentrations of 0−80 mM H2O2 or 0−8 mM menadione added to 1/4 SDAY. (B) Median lethal times (LT50s) of wild-type and mutant strains against the second-instar larvae of S. litura under a standardized spray. The bars of each group marked with asterisks differed significantly from those unmarked (Tukey's HSD, P<0.05). Error bars: SD of the mean from three repeated assays.